Animal Hospital at Thorndale, INC.

Joan M. Yarnall, V.M.D., Ph.D.

After completing a double undergraduate major (B.S. in Zoology and B.S. in Secondary Education) in 1974, and a Masters degree (M.S. in Physiology) in 1975, at the Pennsylvania State University, University Park, PA, Dr. Yarnall moved on to the University of Wisconsin-Madison, to complete a Ph.D. in Physiology in 1980. After a few years of post-doctoral research at the University of Texas Health Science Center, Houston, Texas , she decided to pursue her childhood dream of becoming a veterinarian. She began her veterinary education at Tufts University School of Veterinary Medicine, Boston, Massachusetts, and reestablished residency in Pennsylvania to complete her Veterinary Medical Doctor degree at the University of Pennsylvania School of Veterinary Medicine in 1987. After honing her skills as an associate veterinarian in another area practice for 6 years , she established the Animal Clinic at Thorndale in 1993. She designed our current facility at 431 Bondsville Road, Downingtown, relocating the practice there in 2004. Despite being a "gradual student" studying at various universities around the country, she now lives three miles away from where she was born and raised, and loves being a small animal veterinarian and practice owner. In addition to spending time with her pride and joy, daughter, Amy, and her pets, she enjoys gardening, wildlife, and many outdoor activities.

On-Line Requests for Medications/Foods

With most people staying home during Covid-19 shutdowns, on-line shopping for medications, pet foods and supplies has exploded. On-line requests for prescription items need a veterinarian’s approval. This takes time away from our doctor’s ability to care for our patients in need. Filling these requests also indirectly places a financial burden on our hospital. We …

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on-line request affecting veterinary practices

Covid-19 Affects Veterinary Surgery and Dental Schedules

The Covid-19 pandemic is already having widespread affects upon small businesses, including the veterinary community. At this writing, we are not seeing disease from this particular corona virus in our pets. The virus is, however, directly affecting how veterinary practices are able to conduct interactions with human pet owners. To help reduce possible viral spread, …

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Covid-19 is affecting medical and surgical supplies

Feline Arthritis: More Common Than You Might Expect

Our feline friends are living longer thanks to advancements in veterinary medicine, better home care and nutrition. However, with longer lives come chronic diseases such as osteoarthritis. We frequently see older dogs with arthritis. Studies reveal that feline arthritis is more common than we once thought. We want to help our aging felines stay comfortable …

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Feline arthritis

Dog Personality – Nature vs Nuture

Dog breeds differ in appearance because we humans selectively bred the dogs to look certain ways. This selective breeding also linked groups of behaviors to each breed. Retriever breeds like to retrieve. Beagles love to bark. Border collies are natural herders. New studies are beginning to identify the DNA links to these breed specific dog …

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Dog personality with a breed is in part genetically determined. 3 golden retrievers playing in a puddle

Senior dogs: How to Care for Them

All of our dogs are aging. Giant breeds will age more quickly than smaller breeds. For example, a Great Dane is considered to be a senior by 5-6 years of age, while a Chihuahua is a senior around 10-11 years. However, age is not a disease. Improved medical and nutritional care can make a difference …

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A black and white dog representing keeping your pet healthy in the summer

Older cats: how to care for them

It was not long ago we defined older cats as eight and above. Now it is not uncommon to have an sixteen to twenty year old cat. Improved nutrition, indoor living and advancements in veterinary care have all contributed to better feline health and well-being. Read on and see what practical things you can do …

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